Antarctic Seafloor Light and Temperature Data from Ocean Acidification Experiment

Ambient light and seawater temperature measurements were collected from the seafloor during a controlled ocean acidification experiment near Casey Station, Antarctica. The Australian Antarctic Data Centre managed this data, which captures conditions from the austral summer of 2014/15. Sensors were deployed inside experimental chambers, open plots, and around the site to monitor environmental variables.

Use Cases

• Correlate ambient seawater temperature with manipulated pH levels to assess thermal buffering effects on acidification stress.
• Model benthic community responses by analyzing Photosynthetically Active Radiation (PAR) levels inside treatment versus control chambers.
• Validate experimental chamber isolation by comparing ambient light and temperature readings from inside chambers to those from open plots.
• Reconstruct diurnal and seasonal environmental baselines using time-series data from Odyssey and Hoboware sensors deployed across the site.

Strengths

• Data originates from a controlled, in-situ ocean acidification experiment with replicated treatment and control chambers.
• Measurements cover multiple sensor types (PAR and temperature) distributed across experimental and ambient site locations.

Limitations

• Specific row counts, sampling frequency, and column details for the light and temperature datasets are not provided.
• Data is from a single field season (2014/15), limiting analysis of long-term or interannual trends.
• The geographic scope is restricted to one bay near Casey Station, East Antarctica.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC) record AAS_4127_antFOCE_EnvironmentalData.

Collection Method

In-situ collection using Odyssey Dataflow PAR sensors and Onset Hoboware Tidbit v2 temperature loggers attached to underwater infrastructure.

Time Range

Austral summer of 2014/15.

Freshness

null

Geography

O'Brien Bay, approximately 5 km south of Casey Station, East Antarctica.